Traction-engine brake.



PATENTED APR. 2, 1907.

A. B. LATHAN. TRAGILON ENGINE BRAKE.

APPLICATION FILED IUNB8,190G.

3 muen oz cult in moving warren snares:

Pnraar GFFKCE,

ARTHUR B. LATHAN. OF AiiBlQ-X, IOWA.

. TRAoTiQ -EN ME BRAKE.

Applioatii n filed June 8,

1'!) all whom it may concern.-

Be it known that I, ARTH UR Bl LATHAN, a .citizen of the United States, residing at AL bia, in thecounty of Monroe, State of Ibwa, ht Ye hwmitedeertain new-and useful ,Improvements in TractioneEngine Brakes and l do hereby declare the following to be a full, clear, and exact. description of the invention, such as will. enable others skilled in the artYt-o "which it. a'ppertains to make and use the same. This invention has relation to brakes for traction engines and for separators and threshing-machines driven by them."

I t is well understood by thosefa'cquainted with threshing by machinery'that it is ditti;

to control its v readiness, for the reason, among others, that the person whose duty it is to look after the brake has other mattersto attend to, andin going over uneven 'r'oads'and downsteep grades it is often necessary'that the brake should'be applied with force and prompt energy when the brakemans-othe'rduties take his attentionto such a degree or extent that- 1e cannot reach'or apply power to the brakes in proper time and with requisite force. WI have conceived the idea of employing a brake i mechanism for the purpose mentioned which will permit the erson in charge of the brake to control it wit 1 case and IQildlIlQSSfSO that gine over the road other duties attendant upon etting the encan be looked after without interfering with attendance upol r the brale.- I will first proceed to describe the invention in View of the annexed drawings, form- .ing a part of this specification, andethen point out the part orimprovement with particularfity in the subjoined claim.

view of solmuch of-a traction-engine as it is necessary to illustrate in order to explain the invention. Fig. 2 is a sectional detail view of the power-cylinder and lts connection with the brake-band.

.In the drawings, 10 designates the band- -wheel on the axle of the ground wheel 11.

Specificationof Letters Patent.

therim-by tightening it thereon tl and provided cylinder s furthermore provided with a; steam-inlet below the piston, with \\'lll(ll mmunicating with the boiler or ten and at its lower end with th the engine from place to place I rated ends of the lmmbtightening s speed at tunes with requisite toward bringing them in so tightening the strap on its run, with the 1e said drawings,-Figure 1 is aside Patented April 2, 1907. Serial No. 320.393.

trough the medium of the tightening means of a form and construction to be presently explained.

14 is aVertically-:1rraiiged steaiii-cylinder, preferablylocated above theband-wheel 10 with a piston 15. The said let'there' is-Eeonneeted a steam-comluit comother source of steam-supply. A piston-rod '16 iscon'neeted at its uppeihnd with the bottom of the pise convergent 8, the opposite'ends are connected to-the sepatrap.

steam is-ad- 1e piston the ends of two links 17 and 1 of which: links It will now be seen that when mitted into the cylinder below. tl

latter will be forced up, and the piston-rod,

drawing upon the links 17 and 18, will tend to parallelism, and

eifect of stoppingor impeding the rotation of the said wheel.

The throttles for operating the valves to admit steam to the cylinder will be conven iently located, so that the attendant can easily reach and operate them while attendmg to other duties arisi n-g out ofexigeneies in getting the engine over difficult places.

It is to lie-particularly noted that the means for applying and regulating thebrakei, that has heretofore been a matter "requiring much time and energy of the attendant, with my invention is greatly simplified and can be actuated with all needed energy without calling for the exclusive time and efforts-of the attendant, a matter of supreme importance in this class of improvements,

What IS claimed as the Invention 1s In a traction-engine of-the class'described,

the combination of. the ground-wheel and its eurodfibn the with the band-wheel se axle of the groundwheel, the band or strap on the rim ,of the band-wheel having divided ends, a steam-cylinder located directly above the band-wheel, a piston in the cylinder, -a piston-rod connected at the bottom of the piston, the lower end of the piston-rod being pivoted to the convergent its upper end with i IOC ends of tn o links, the other ends of which are.

'.- eonnectedto the difided ends of sa idetrep, a testifi lopy whereof I affixjmy'si'griature.

" steam-inlet to She cylinder below the piston, in presence of two witnesses.

a" steam con uit communicating between v saidinlet and the boiler, and means, c'onve'n ARTHUR L 5 iently 10cated,;f0'r controllin the admission witnessesz' j of-stemm to, or "shutting it. 0 from the cy1-' r f M. C. FALVEY,

inderi 5 ELMER J. GRAK; 

